[9fans] kfs question

[Micah Stetson <micah@cnm-vra.com>]

I was trying to build a distribution floppy image on my
laptop (486-75, 32MB, ~500MB HD, I know, old, old, old),
but kfs died every time I attempted it.  A couple of times,
it just paniced, once it said it ran out of swap space.
While I'd be interested to know what caused this, I have
a more immediate problem, now.  Since kfs died, I couldn't
halt the filesystem, so after a couple of crashes of this
sort, I ended up with some corruption.  Now whenever I
run kfscmd check, I get a bunch of complaints just like
this one:

/mail/box/->name ('€\x0e\x02'€\x0e\x02'€\x0e\x02'€\x0e\x02'€\x0e\x02'€\x0e\x02'€\x0e) not terminated

since I don't imagine many mail gateways will like that, here it is
piped to xd -c:

0000000   /  m  a  i  l  /  b  o  x  /  -  >  n  a  m  e
0000010      (  ' c2 80 0e 02  ' c2 80 0e 02  ' c2 80 0e
0000020  02  ' c2 80 0e 02  ' c2 80 0e 02  ' c2 80 0e 02
0000030   ' c2 80 0e  )     n  o  t     t  e  r  m  i  n
0000040   a  t  e  d \n
0000045 

My question is, is there any way of fixing this, I've tried
disk/kfscmd 'check rfdtw' to no avail and disk/kfscmd
'remove /mail/box/all that junk' says that there's
an overlong path element.  Doing disk/kfsmcd 'remove
/mail/box' doesn't do anything presumably because the
directory is not empty.

As a side note, the synopsis of possible arguments to
check in kfscmd(8) is different from the list that is
documented below the synopsis.  The synopsis has no 'c'
option and the description has no 'R' option.  Looking at
the source, there doesn't seem to be an R option, although
there is an undocumented 'q'.

Thanks in advance,

Micah